System for measuring perimeter variation in materials testing
Patent Information
Authorship: ; Alegre Calderón, Jesús Manuel; Pérez Gil, Jorge; ; ;
Applicant(s): -Universidad de Cantabria
Application: -009901298 (04.06.1999)
-Application Pub. No. : ES2166264A1 (01.04.2002)
-Patent Model No. : ES2166264B1 (16.06.2003)
Abstract:
The present invention relates to a measuring system capable of determining the perimeter variation undergone by a specific section of a specimen during mechanical characterization tests of materials. The designed measuring system is based on winding a wire around the section of the specimen for which the perimeter evolution is to be determined. To ensure intimate contact between the specimen and the wire, a specific tension, $T$, must be applied to its free ends. Thus, the separation of the free ends of the wire, $D1$, constitutes the perimeter variation of the analyzed section.